Manchester United chief Sir Alex Ferguson has warned his squad about getting complacent over their defence of the Premier League title.
The Red Devils have powered their way to a commanding position at the summit of the table in recent weeks, and some bookmakers have even paid out on them winning the title.
They remain four points clear of Chelsea and Liverpool, but have two games in hand on their rivals.
But Ferguson is quick to point to La Liga, where Barcelona have seen their seemingly insurmountable 11-point lead reduced to just four points.
"Barcelona have been playing Saturday-Wednesday-Saturday since January," opined Ferguson.
"They did have an 11-point lead, now it is four and for the first time this season they lost a game after being in front.
"It is a warning, and there are plenty of them, that if you take your foot off the pedal you can get a kick in the teeth."
Ferguson also warned his players that anyone thinking the title was in the bag would soon find themselves sidelined.
"They would have one attempt at being complacent and it would be the last," said Ferguson.
"We have plenty of bodies in the dressing room who would come down on them."
The Scot insists that winning the Premier League is their biggest opportunity to win a 'major trophy'.
"I would be happy if we only won the Premier League from this point," he said. "It is a major trophy.
"I would love to see us winning the UEFA Champions League again. That is my big desire.
"But at this moment the Premier League has to be the best opportunity.
"If we keep our heads straight and focused we have a big chance."